/*
 * Copyright (c) 2023, LXMS (lxinet.cn).
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package cn.lxinet.lxms.framework.core.aop;

import cn.lxinet.lxms.framework.core.helper.PageHelper;
import cn.lxinet.lxms.framework.core.vo.Page;
import cn.lxinet.lxms.framework.core.annotation.UsePage;
import jakarta.servlet.http.HttpServletRequest;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
import org.aspectj.lang.reflect.MethodSignature;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import java.lang.reflect.Method;

/**
 * @author zcx
 * 2018/10/19
 */
@Aspect
@Component
public class PageAspectAop {

    @Pointcut("@annotation(cn.lxinet.lxms.framework.core.annotation.UsePage)")
    public void annotationPointCut() {}

    @Before("annotationPointCut()")
    public void before(JoinPoint joinPoint) {
        MethodSignature sign = (MethodSignature) joinPoint.getSignature();
        Method method = sign.getMethod();
        UsePage annotation = method.getAnnotation(UsePage.class);
        HttpServletRequest request = ((ServletRequestAttributes)RequestContextHolder.getRequestAttributes()).getRequest();
        if (annotation != null){
            Page page = new Page(request);
            PageHelper.setPage(page);
        }
    }
}